用于加热,冷却和热水的空气对水泵
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我的燃气锅炉已经25岁了,仍然可以正常工作,但有一天会死。我也试图摆脱化石燃料。现有的铸铁辐射器的水温低至140*f。请参阅下面的附件,了解我如何到达。我住在马里兰州,Stick建造了1925 1 1/2故事屋。地下室不在条件区域中。现在,我几乎完全隔热了地下室天花板。条件区域为1275平方英尺。夏季,室外设计温度15*F,室内68*F和95/75。HDD约为2853。适度潮湿,40粒差异。 Winter ACH 1 per hour; summer .5 per hour. 3 occupants, plus dog. 1 pellet stove in Living room, tight.
总热负荷25399 BTU / h和冷负荷18,314 BTU/h.
在这里,我只是发现了一个错误,在能源成本分析手册J Show 4500 HDD下,只有1250 CDD。Eai.gov显示了南大西洋的2853 HDD,1964年用于冷却。我跑了手册。
https://www.eia.gov/energyexplained/index.php?page=about_degree_days
My room by room calc. shows my lossiest room at 4942 heat loss at design temp and my radiator emits 7560 at 140* water. All my existing room are like that. I know Air/water heat pumps only give out 130-140* water, but it seems I should be fine with that. The idea comes from John Siegenthaler at HPAC.
This involves use of a buffer tank, with a coil for DHW, but I still don’t know how that would work in the summer, and a fan coil unit for forced air cooling.
我已经完成了能源审核的工作,我正在尝试完成这些建议,似乎我将需要机械工程师来设计系统。
Is there any reason why this could not work?
GBA细节库
A collection of one thousand construction details organized by climate and house part
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Replies
As long as you do not mind spending more than twice as much money to design and install the system, twice as much to service the equipment and 15% more to operate the equipment keeping the hydronic system will work great.
沃尔塔
布莱恩,
这曾经解决过吗?我的某些卧室也有超大的铸铁辐射器,因此我一直在检查空气中的热泵(北极,LG,Chiltrix等)。使用您在附件中提供的图表(谢谢,顺便说一句),看起来我的散热器的水温只需要在105F左右才能满足卧室中必要的加热负荷。
基兰,
加热可以与旧散热器一起使用,这里有一些文章来解决这一点。但是,您可能需要在夏季的几个月中解决交流电。
因此,我去了Chiltrix CX34-2,主要是在电工和水管工的帮助下安装的。我还将地下室纳入了条件区域,主要是通过使用Insofast 2“泡沫绝缘材料。从1925年开始,这是一项非常艰难的工作,从结构上固定墙壁,不用说,这些“泥瓦匠”并没有跪在标准块布局的变化上,但这并不是我可以挖掘他们的坟墓对他们大喊大叫)。
The Chiltrix is working ok now ( the highest honor mechanical equipment can rate, in my opinion) although it has taken quite a bit of troubleshooting and massaging to get it to that state.
But yeah, I ditched the radiators, and got Fan Coil Units, and DHW 60 gallon tank. No buffer tank.
关于风扇线圈单元的另一件事,用于加热,它们都辐射热量,远小于铸铁,但这是恒定的,当然,它们也将热量吹出。
Thanks for the report of your conversion. That's great to hear and nice that it worked out that you could do a lot yourself.
感谢您提供的所有信息,Brian。我检查了Chiltrix CX34(以及Insofast)。我知道您对地下室砌体的意思 - 我有一个野石基金会,看起来它是由随机选择的岩石的孩子建造的。Chiltrix看起来很棒,但是我真的没有技能来安装它或自己对其进行故障排除。我认为我可能要做的是现在将散热器放入,将一些空对空热泵放在一楼(我们只有踢脚板散热器),看看是否有任何简单的空气到水单元出现在市场上在接下来的几年中。我希望有一个空对水泵几乎像热泵热水器一样难以安装和维护,但是空气对水单元的优雅似乎是一个主要的维护问题,尤其是如果您不知道你在做什么(我不)...