在几种情况下，建筑物可能同时需要供暖和制冷。在这类建筑中，可以方便地安装同时供暖和制冷的热泵。与工作在加热或冷却中的可逆热泵不同，用于同时加热和冷却的热泵具有在三种模式下运行的区别:加热模式、冷却模式和同时模式。在本文中，使用TRNSYS软件考虑和模拟不同类型的建筑，以确定供暖、制冷和生活热水生产（DHW）的需求。同时加热和冷却需求比率（RSN）的引入，可以根据同时生产技术的适当性来评定建筑质量。 调查了三种不同气候（雷恩、马赛和斯特拉斯堡）下的建筑（低能耗建筑、办公楼和零售空间）。由于热泵的设计高度依赖于制冷剂的特性，因此开发了使用R290和HFO1234yf同时加热和冷却的小型热泵模型。利用15kW-51182.1Btu/h热容量热泵与R407C同时加热和冷却的实验结果，验证了制冷部件的数值模型。最后，使用一种使用两种环境（EES和TRNSYS）的共溶技术来比较与具有最佳RSN的建筑物耦合的不同制冷剂的性能。引用: ASHRAE会议论文，科罗拉多州丹佛

In several situations, simultaneous needs in heating and cooling in buildings can occur. A heat pump for simultaneous heating and coolingcan be installed advantageously in this kind of buildings. Unlike a reversible heat pump that works either in heating or cooling, a heat pump forsimultaneous heating and cooling has the distinction of operating under three modes: heating mode, cooling mode and simultaneous mode.In this article, different types of buildings are considered and simulated using TRNSYS software to identify the needs for heating, coolingand domestic hot water production (DHW). The introduction of a ratio of simultaneous heating and cooling needs (RSN) can qualify buildingsin relation to the appropriateness of a simultaneous production technology. Three kinds of buildings are investigated (Low-Energy Building, officebuilding and retail space) in different climates (Rennes, Marseille, and Strasbourg).As the design of a heat pump is highly dependent on the properties of the refrigerant, models of small heat pumps for simultaneous heatingand cooling using R290 and HFO1234yf are developed. Results of experimental tests on a 15 kW-51182.1 Btu/h heating capacity heat pumpfor simultaneous heating and cooling working with R407C were used to validate the numerical models of refrigeration components. Finally, a cosolvingtechnique using two environments (EES and TRNSYS) is used to compare the performance of the different refrigerants coupled to thebuilding with best RSN.