2024年春季研究通讯
This post complements our quarterly research newsletter, which features updates on CEE's research projects. 报名 在你的收件箱中获取这些信息.
高考卡资助: Helping utilities bring energy savings to Minnesotans
Minnesota Department of Commerce has announced grants to CEE and its partners totaling over $3.5 million for 11 multi-year research projects that CEE will either lead or serve as subcontractor. 全面的, the newly funded research will help maximize energy efficiency in commercial buildings, 保障性住房, 多户家庭的建筑, 杂货店, and more; improve the efficiency of residential air source heat pumps, 热泵热水器, as well as commercial building ventilation; and develop insights into insulation and thermal storage, as well as inform the development of load management, 区地热, 电动汽车项目. Completed projects provide utilities with key information to improve relevant program designs or create new programs within their conservation portfolios.
Funding for these grants is provided from the Minnesota Department of Commerce, Division of Energy Resources through the Conservation Applied Research and Development (CARD) program, 是由明尼苏达州纳税人资助的吗.
Optimizing the New Generation of 杂货店制冷 Equipment
背景: 
Carbon dioxide (CO2) is a natural refrigerant that minimally impacts global warming compared to previous industry-standard refrigerants. 作为美国.S. grocery industry moves to standardizing CO2 as refrigerant, 然而, 夏季的能源消耗正在增加. This project set out to field-test design features that provide savings opportunities in CO2 refrigeration systems that have not yet been addressed by Minnesota's utility programs.
更新: The final report for this project was published this spring. The field project took place over a three-year period and investigated three installations of the most currently relevant CO2 system upgrade options for 杂货店 in Minnesota: adiabatic gas coolers, 机械再冷却器, 以及一个被称为FTE的淹水蒸发器选项. The team verified energy and demand savings for all three technologies. FTE/flooded evaporators had about double the annual energy savings of the other two measures, 但他们有一半的人在夏季需要储蓄. The project team also found that lowering an adiabatic gas cooler's wet-dry switchover point from 75°F to 55°F tripled the annual energy savings achieved.
This project is supported by a grant from the Minnesota Department of Commerce, Division of Energy Resources through the Conservation Applied Research and Development (CARD) program, 是由明尼苏达州纳税人资助的吗.
发现空气-水热泵
背景: The 空气-水热泵 (AWHP) is a relatively new variant of an air source heat pump (ASHP) that uses electricity to move heat from outdoor air into indoor water and offer the potential flexibility and higher efficiency of more expensive heat pump technologies at much lower costs. This project sought to characterize and evaluate the efficiency performance, 以及AWHP系统的成本效益.
更新: The project team completed its final analysis and report in March. The project identified dozens of AWHP models and configurations that are available for a variety of Minnesota residential applications. 对于本研究中现场测试的系统, AWHPs产生了6个,300 to 16,600千瓦时和$453到$1,每年节省450英镑. The project team recommends aligning this subset of ASHP technology with existing ECO models and programs and advocates for standardized ratings for AWHP systems to promote the technology as a flexible and effective heat pump solution.
This project is supported by a grant from the Minnesota Department of Commerce, Division of Energy Resources through the Conservation Applied Research and Development (CARD) program, 是由明尼苏达州纳税人资助的吗.
住宅暖通空调风扇的高级控制
背景: This project will research the energy savings potential of a fan control device designed to reclaim HVAC losses by extending post-purge times, as well as research the market for such a product. Researchers will assess residential HVAC market and installation feasibility in addition to developing a selection and diagnostic tool. 最后, analysis of monitored data from installed systems will be used to determine the energy savings, 碳减排, 和成本效益.
更新: The project team has submitted a final report and recently published an infographic and fact sheet containing key findings. Data was collected and analyzed from 20 homes. The field evaluation showed that for 14 of 20 sites, there was no significant difference in annual gas use associated with the fan controller. These results emphasize that any effect the fan controller has on gas use is small relative to other sources of uncertainty.
This project is supported by a grant from the Minnesota Department of Commerce, Division of Energy Resources through the Conservation Applied Research and Development (CARD) program, 是由明尼苏达州纳税人资助的吗.
媒体接触
蒂姆•汉拉罕 thanrahan@yueqiancd.com