Hey Warriors (and recently departed Warriors), Dennis Rodman has been looking at you.He’s a fan (well, mostly) bearing props across the eras.If you weren’t around for the NBA’s Rodman era, some of the following is going to sound fantastical, preposterous, unreal and just plain bent.Make no mistake, the guy is a legit Hall of Famer. He won five rings. He led the league in rebounds. Seven times. In a row. He was a defensive genius. There were two sides of Rodman, the person and …
Share Facebook Twitter Google + LinkedIn Pinterest Episode #9 of the Ohio Ag Net Podcast courtesy of the good folks at AgriGold. Visit them at www.agrigold.com.This week, the crew talks rain around Ohio and where it puts planting progress. Ty Higgins takes a look at a very unique idea from out west — goat crossfit with DaNelle Wolford. Matt Reese, though absent from the roundtable discussion as he chases down turkeys, was at the No Show Lamb Show this weekend put on by the Ohio Sheep Improvement Association. He’s joined by event co-chair Lisa Shearer. We wrap up the podcast hearing from the new Secretary of Agriculture Sonny Perdue as he visited USDA offices in Kansas City.
Share Facebook Twitter Google + LinkedIn Pinterest By Evin Bachelor, Law Fellow and Sr. Research Associate, The Ohio State University College of Food, Agricultural, and Environmental SciencesThe group Toledoans for Safe Water sought to put a “Lake Erie Bill of Rights” on the ballot this November as an amendment to the Toledo City Charter. The amendment would have stated that Lake Erie and its watershed “possess the right to exist, flourish, and naturally evolve,” and that the citizens of Toledo have a right to a clean and healthy environment.Enforcement would have been through a mix of revoking corporate licenses and privileges or criminal penalties if violated. Despite having enough signatures, the Lucas County Board of Elections refused to place the issue on the ballot, saying that the amendment contained provisions beyond the City of Toledo’s authority. The dispute made it up to the Ohio Supreme Court, which on Friday, Sept. 21, decided that Toledoans for Safe Water failed to prove that the Lucas County Board of Elections improperly denied their petition to place the issue on the ballot. The court’s decision is here.
Verifying the heat load calculationsAs discussed in a previous article on heating and cooling, the Manual J design heat load for my house is 34,000 Btu/hour at a design temperature of 7°F. To check this, I used a method of calculating the heat load based on fuel use as described in this GBA blog by Dana Dorsett.The heating demand is satisfied by a combination of internal gains and furnace output. The contribution of the furnace is calculated based on historical fuel use data. To calculate the contribution of internal gains, this method relies on a guess at the home’s balance point, which is basically the outdoor temperature at which internal gains would keep the house at the design indoor temperature. A better insulated home will have a lower balance point than a poorly insulated home. Homes with a lot of solar gain or other internal gains would have lower balance points. Dana recommends guessing 60°F for a house with 2×6 walls and 65°F for a house with 2×4 walls.Instead of simply guessing what the balance point was, I attempted to determine the balance point by applying Dana’s method to four different months of fuel use data. For each of the four months, I tried four different levels for balance point, 50°F, 55°F, 60°F, and 65°F. The estimated heat load gets lower as the presumed balance point gets higher. However, the slope is steeper for warmer months. (That is probably why Dana recommends using mid to late winter bills.)The negative slope results from assuming that a lower proportion of the heat comes from internal gains as the balance point increases. (This does not imply that modifying the house to have a higher balance point would reduce the heat load.) I graphed the results (see illustration #3 below). In theory, the lines for the different months should intersect at the actual balance point and design heat load. In practice, noise factors like varying occupant behavior cause some divergence from the theory. Based on the graph, I believe the balance point is in the ballpark of 56°F and the heat load is in the ballpark of 28,000 Btu/h.The lines for October to December seem to cross as expected. However, the line for January appears to have shifted. This could be due to noise factors or could represent an actual change in the heat load. I would expect some drop in the heat load because we improved the insulation in our attic around that time, as mentioned in a post I wrote in GBA’s Q&A forum.In relying on the Manual J calculations, I specified a two-stage furnace with an output rating of 39,000 Btu/h on high stage, against the HVAC contractor’s recommendation. On mornings with single-digit temperatures this winter, however, the furnace ran continuously without satisfying the thermostat setpoint. I have not yet figured out why that happened. Is the heating load actually substantially higher than suggested by the Manual J calculation or the calculation based on fuel usage? Is the furnace not actually putting out its rated output capacity? (I did verify that the fan speed changes as expected when it is supposed to switch from low stage to high stage.)One theory is that the small fan that goes with the small furnace is not able to distribute the heat throughout the relatively large house. I didn’t worry too much because the house never got uncomfortable and the temperature came up to the setpoint rapidly once the sun came out.Another decision that the HVAC contractor pushed back on was my decision not to install a humidifier. On that front, the data say that I was right. The indoor relative humidity did not go below 30% over the course of the winter. We have now been living in the house for about nine months. I would like to wrap up this series of articles by discussing the measured performance. I’ll start with the blower door test.One of our goals during construction of the house was to make it airtight. Of course, no house is ever completely airtight. Some houses leak a little and other houses leak a lot. The standard way of measuring airtightness of houses is a blower door test.A fan is installed into the front door so it blows air out. An equal amount of air comes in through whatever leakage paths are in the house. The technician adjusts the fan speed while measuring the pressure difference between the inside of the house and the outside of the house. That determines the rate of airflow required to establish a 50 pascal pressure difference. The air flow rate is compared to the volume of the house to calculate the number of air changes per hour, called ach50.A low ach50 number is good. We had a blower door test performed on our previous house, which was built in the early 1990s. The ach50 was about 10. That house had many of the symptoms of poor air sealing: rooms that were uncomfortably cold whenever it was windy in the winter, for example. Floor plan complicated air-sealingThe floor plan of our house is not ideal for air sealing. The fact that only some of the house has a second story and the ceiling in the hangar is midway up the second story meant that we had more wall/ceiling intersections to seal. We did a number of things to improve the airtightness.The worst areas in most houses are the ceilings and the rim joist. To reduce air leakage through the ceilings, we:Located the attic accesses either in the garage or in the gable ends to avoid leakage around attic access doors.Avoided recessed can lights.Used spray foam around the intersection of the walls and ceilings.To reduce air leakage around the rim joists, we:Applied a peel-and-stick membrane on the exterior extending from the foundation concrete to the wall sheathing.Used spray foam on the interiorTo reduce air leakage through the walls, we:Taped the joints of the OSB sheathing.Caulked around the framing on the interior sideSelected high-quality casement windows.So, did these things work? Yes, they did. Our blower door test result of 0.82 ach50 proves it. Cooling loadsThe Manual J calculated cooling load for the house was 18,000 Btu/h at 88°F. The smallest central air conditioner that was readily available was a 2-ton (24,000 Btu/h) unit. I haven’t attempted to systematically measure the cooling load. Anecdotally, I notice that the air conditioner runs about half of the time on the few occasions that the outdoor temperature has reached the mid 80s this summer. I wish I would have spent the extra money for a two-stage air conditioner. When only one zone is calling for cooling, it is sometimes uncomfortably cold close to a supply register. If we had a two-stage unit and a zone controller smart enough to use the low stage when only one zone is calling, that problem would be mitigated.Out of curiosity, I installed a remote temperature sensor in the attic while dealing with the insulation issue. On a sunny day, it is not uncommon for the attic air temperature to be 20°F to 25°F warmer than the ambient outdoor air temperature. So, for cooling, the delta T through the ceiling is commonly three times larger than the delta T through the walls.The relative humidity on the first and second floors seems to average about 50% in the summer without supplemental dehumidification. In the basement, the temperature stays in the low 70s without ever calling for air conditioning. The relative humidity in the basement often pushes 60% if I don’t run a dehumidifier. New construction houses now usually have an ach50 of between 3 and 4. To be certified under the very rigorous Passive House standard, a house needs an ach50 of less than 0.6. Builders of Passive Houses go to great lengths to get to that level. For our house, the heating and cooling load calculations assumed an ach50 of 1.5, although I hoped for better. Editor’s note: This is the last in a series of guest blogs by Reid Baldwin about the construction of his house in Linden, Michigan. For a list of previous blog posts on GBA by Reid Baldwin, see the “Related Articles” sidebar below. You can read his entire blog here. BLOGS BY REID BALDWIN Solar and Hot WaterExperiments in Home AutomationChoosing and Installing an ERVHeating and CoolingWalls and Insulation Energy Efficiency and Garage Space for an Airplane RELATED ARTICLES Is Modeling a Four-Letter Word?Energy Modeling Isn’t Very AccurateTackling the Plug Load Problem Why Don’t Green Buildings Live Up to Hype on Energy Efficiency?Saving Energy With Manual J and Manual D Overall impressionsDuring the process of designing, building, and living in this house, I have learned a lot about building science, HVAC, and the housing construction industry. Fortunately, I learned most of it in time to incorporate that knowledge into my house. There are a few things that I learned about too late in the process to apply. I got a much better result in terms of energy use and comfort than I would have gotten if I simply hired the usual cast of professionals to do what they usually do.The cast of professionals that I hired also learned some things. It seems that only a tiny fraction of the industry is actively applying a lot of what experts know about how to build houses. Hopefully, my project made that fraction a little bit less tiny.
Character AnimatorCharacter Animator now allows animators to perform walk cycles with keyboard controls, record mouth shapes based on voice, and adjust mouth shapes in the timeline with the new Lip Sync tool. Character Animator also added a workspace designed for live broadcast and the ability to connect multiple machines to perform multi-character animations.Team ProjectsTeam Projects gets a few updates, including Dynamic Link support and better project management tools for editing teams that work in various locations.What updates are you most excited about? Let us know in the comments below. Premiere Pro gets powerful new workspaces with better After Effects and Audition integration.Just as the Lumetri Color workspace changed color grading in Premiere Pro, the new Audio and Graphics workspaces bring powerful tools from Audition and After Effects to the NLE. After Effects gets a powerful new deblur tool and Lumetri color grading, while Audition announces a better multichannel workflow — plus news on Character Animator and updates to Team Projects.Premiere Pro CC 2017Premiere Pro turns 25 years old and has established itself as an essential NLE. The latest version of Premiere Pro CC 2017 (11.1.0) is no longer competing with the likes of FCPX or even DaVinci Resolve. Premiere Pro has set its sights on Avid, aiming to be the industry-standard editing platform.From team collaborations to custom workspaces for color, graphics, audio, and more, Premiere Pro meets the demands of both the multitasking video editor and the collaborative creative workflow. With new Essential Graphics and Essential Audio Workspaces, Premiere Pro is now an all-encompassing video editing powerhouse.Premiere Pro Essential Graphics WorkspaceThe Premiere Pro Essential Graphics workspace introduces a new panel that works seamlessly with After Effects. The tools in the workspace are similar to those in Photoshop and Illustrator, in that they enable you to work with text; align and transform words and shapes; and adjust color, opacity, drop shadow, and more.Essential Graphics Tools:Type Tool — change the font, size, blending mode, and color of the textShape Layers — use rectangle, oval, and freeform drawing toolsClip Layers — add images or video to graphicsHere is a look at the new Type tool in action.Motion Graphics Templates will allow motion designers to create title sequences or graphics in After Effects with parameters a video editor can adjust in Premiere Pro. This eliminates the need for video editors to send titles back for minor revisions, since you can now adjust the text, shape, and clip layers in Premiere Pro. These Motion Graphics Templates will replace the need for Live Text Templates.Premiere Pro Audio WorkspaceThe new Essential Sound panel in Premiere Pro and Audition gives video editors the power to accurately adjust audio as intended, rather than relying on the expertise of a sound engineer. Editors can assign a mix type to clips, giving each clip a role in the project — dialogue, music, sound effects, and ambience. This gives you the ability to adjust the loudness of a single role, like dialogue, uniformly at once.If you find that Premiere Pro is not meeting your audio adjustment needs, you can send the changes you’ve made to Audition for additional alterations. Premiere Pro’s single sliders in the Essential Sound panel are actually working with several different sliders underlying the program. To dive into the detailed controls, expert sound designers can fine tune changes in the effects tab or in Audition. The audio will transfer between the programs as a live effect. All of these changes rely on Adobe Sensei, the company’s artificial intelligence and machine learning framework.As a further audio note, Premiere Pro now supports Ambisonic audio exports for VR and 360-degree videos.After Effects CC 2017Though Premiere Pro saw most of the big updates, After Effects received some powerful upgrades as well.Motion Graphics TemplatesThe Essential Graphics panel correlates with the same panel in Premiere Pro, but in After Effects, motion designers can control the Motion Graphics Templates in ways video editors in Premiere Pro cannot. After Effects users can organize the adjustable parameters like episode number, lower thirds text, color, and alternate styles. Then you can export AE projects as Motion Graphics Templates for use in Premiere Pro. Over twenty templates are available with the update.Camera Shake DeblurThe most powerful AE update is the new Camera Shake Deblur tool. If you stabilized footage with Warp Stabilizer, you may have seen some blurred footage. The Camera Shake Deblur analyzes footage, detects blur, and then finds sharp frames around the edge of the blurred area. An automated process then processes a smoother image and applies it to the footage.Lumetri Color GradingThe powerful Premiere Pro Lumetri color tools are now available in After Effects, enabling users to work with Lumetri scopes, perform basic corrections, control HSL, and more. Designed for a broadcast workflow, Lumetri can switch between 8-bit, float, and HDR modes.Other Adobe CC UpdatesIn addition to the Premiere Pro and After Effects updates, there is still more for those creatives working in Team Projects, Audition, and Character Animator.Adobe AuditionThe Essential Sound panel (like the Graphics panel) works directly with Audition, and using Dynamic Link, you can view footage in Audition as well. There have also been major updates to the multichannel workflow. Multitrack allows sound engineers to break out multichannel files into separate clips or choose custom channel configurations.