Recommendations for best energy conservation measures in residential high rise buildings?
亲爱的gba，
我被要求在高密度住宅高升高的各个公寓上进行几次能源审核。客户投诉通常是标准：舒适性问题和过高的水电费。
The apartments typically have highly conductive metal window frames and PTAC’s for the heating and cooling.
有人在住房股票的这一领域中有很好的建议吗？解决窗户的最佳实践？高性能加热和冷却选择的好解决方案？任何成功的绝缘策略吗？
Thank you.
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Replies
Art,
您是否指的是六十年代的张力结构的高层建筑？
Brick exterior or other, and where are they located?
Art,
Most occupants of high-rise residential buildings don't have the freedom to remodel their units, although there are exceptions. The heating systems and the windows are usually off-limits when it comes to tenant renovations.
So the first question is: what does the landlord (or the co-op board) allow?
在大多数情况下，改造措施将仅限于简单的动作，例如填缝裂缝，安装内部塑料暴风雨窗以及交换白炽灯泡的CFL。
罗伊，
是的，它们是60年代的张力结构。这些位于曼哈顿的天际线的哈德逊河的新泽西州一侧。
马丁，
Lets assume that the heating systems ARE in play. Any thoughts?
Thank you.
Art,
在亚洲，单个公寓通常用无管小插图加热和冷却。如果您看亚洲公寓楼，通常将立面上撒上数十个壁挂式迷你板单元。
如果您认为房东不介意 - 如果翻新符合本地法规，则无管道板块比PTAC更有效。
但是，我认为这不一定是租户钱的最佳用途。
在过去的几个飞蛾中取得了相当不错的成功之后，这里只有跟进。在直接计量电动的建筑物中，我们可能会看到的最引人注目的改造可能是用置换式ECM电动机替换标准PTAC电动机。对于为空间供暖和冷却提供的PTAC，改造PTAC单元节省的能源可以每年近1,000美元。将其与可以使PTAC鼓风机完全调节的恒温器将其搭配，您可以真正最大程度地提高这些单元的效率并节省大量现金。确保您不要放入不兼容的替换电机，并且可能会使制造商的保修效果。
Art,
(Minor correction: you're working with PTHPs, not PTACs)
我很感动,你能to retrofit the PTHPs successfully.
所以，大家，您首先在这里听到它：
"The future of heating low energy homes is NOT in minisplit heat pumps, but in high efficiency PTHPs."
They can be installed by unskilled labor for1/3rd the capital cost. This is assuming that the manufacturers wake up and give these products more respect.
从历史上看，PTHP有点嘈杂，但是ECM调制电动机也将解决该问题。
好工作！http://greenbuildingindenver.blogspot.com/2009/08/mini-splits-or-ptacs-are-key-to-net.html#comments
Kevin
I'll be in Denver at the Cherry Creek Marriott for a Builder 20 conference weekend of October 1st. Love to get together for a cold beer and conversation Saturday evening if you're around. You've scooped me on the high efficiency PTHP's though I've been using those little Amana units for a while now. for loads of one ton or less. I'd like to hear more about PTHPs with modulating ECM blowers.
听起来不错，迈克尔，那是我的邻居。过来看看丹佛的第一个室内沼泽冷却器。
Kevin,
Let me clarify one point: you are absolutely correct that a PTHP was the subject of this initial post. However, and with that in mind, about 95% of the PTAC's I am working with on this retro-fit have a two-pipe steam coil and a vari-vac control system. Steam heat rather than electric.
But, at the end of the day, when the blower is running for 10 months a year, in either a heating or a cooling cycle, the efficiency of the blower motors present a substantial opportunity. This holds true for either PTHP or PTAC w/steam. I am seeing most of the units I am working with actually have two motors: an evaporator "blower" motor, and a condenser motor at the rear of the unit. One particular model I have been seeing also has a very small fan that introduces OA when the occupant calls for it.
也许在多户家庭部门新建筑的节能局部热量分布的最佳潜在机会是气PTAC，直接通过侧壁排气。
Regardless, there are definitely big opportunities here.
他们是否要 *想要 *放入一个家庭住宅的PTAC上更具美观的PTAC？
“我看到的一个特殊模型也有一个很小的风扇，当乘员要求它时，会引入OA。”其他人对OA有很小的阻尼器。
Just one more advatage of PTHPs: It is the only self-contained "HVAC" appliance that actually has user-controlled "V".
I don't mind the looks of any of these units. In fact, I like the reverse-snobbery aspect. When your friends come over they'll say, "You heat your whole house with THAT little thing?"
“这也许是多户家庭新建筑的节能局部热量分布的最佳潜在机会是气PTAC，直接通过侧壁排气。”这绝对是一种在许多情况下都非常合适的产品。但是，每单位的汽油转播费为数百美元，服务费为每月12美元。PTHP保存了所有这些。$ 12可能是低能一卧室单元的太空供暖费的50％。
Readers who want to learn more about PTHPs may be interested in reading my March 2011 article for精美的房屋建筑杂志，“Heating Options for a Small Home.”
Kevin....
What type of COP on the PTHP's you have in mind?
My concern is that in my climate zone (5A), you would run on electric resistance heat for a good portion of the heating season. And at $.19/kWh.....OUCH!
Also....i wonder if they make "hybrid" gas PTHP's, where you kick into gas-mode rather than electric resistance. Any info would be welcomed.
Thanks.
-Art
Art, Are you serious?
Is your name really Art Vandelay?
米奇