Solar & Heat assisted Passive Heat Recovery Ventilation with and Moisture Extraction (SHAP HRV) for existing and new buildings

随着新建筑按照更高的能源标准建造并变得密闭，自然通风手段消失了。为了克服这一点，使用了机械通风。如果没有热回收，一个普通家庭每年会损失高达5000千瓦时的热量。为了“回收”这一能量，增加了热回收，一些型号声称效率为90%。在两个风扇每天24小时运行的情况下，系统每年消耗高达900千瓦时的电力(是新冰箱的三倍)。在使用燃气加热的情况下，机械热回收通风提供的二氧化碳净节省很少或没有。除了能源使用外，机械系统由于其复杂性而具有较高的安装成本，需要多个行业进行安装和维护，并且遭受部件故障的影响，这增加了已经平均每年100 GB的运行成本。机械系统也依赖于许多电子和机械部件，导致可靠性、资源消耗和电子浪费。从我们创新和翻新的特定被动式热回收通风设备(最初是在TSB资助的可行性研究的帮助下开发的，利用被动堆叠效应和风辅助)开始，我们设计了一套可靠的潮湿房间通风系统，包括被动抽气助推、抽气周期延长、吸湿和简化安装。建议的系统(Shap HRV)既克服了潮湿房间安装的许多挑战(如缺乏烟囱和可靠的抽气率)，又使产品适用于较温暖的气候，极大地增加了其出口潜力。这项技术的发展还将使我们能够提供绿色交易准备全面的房屋系统(使用已经开发的PHRVU用于可居住房间，Shap HRV用于厕所)，这是BRE和LABC提出的建议。

As new buildings are built to higher energy standards and become airtight, natural means ofventilation disappear. To overcome this, Mechanical Ventilation is used. Without HeatRecovery, this leads to up to 5,000 kWh of heat loss from a typical home per year. In order to‘reclaim’ this energy, Heat Recovery is added, with some models claiming 90% efficiency.With two fans running, 24h a day, the system uses up to 900kWh of electricity per year (threetimes more than a new fridge). In cases where gas heating is used Mechanical Heat RecoveryVentilation provides very little or no net CO2 saving.Besides the energy use, mechanical systems have high installation costs due to theircomplexity, require a number of trades to install and maintain, and suffer from componentfailures adding to the running costs which already average £100 per year. Mechanical systemsalso depend on a number of electronic and mechanical components contributing to lack ofreliability, resource depletion and electronic waste.Starting off with our innovative and retrofit specific Passive Heat Recovery Ventilation Unit(initially developed with the help of TSB funded feasibility study and utilising passive stackeffect and wind assistance), we have designed a reliable ventilation system for wet roomswhich incorporates a number of inventions around passive extraction boost, extraction periodextension, moisture withdrawal and simplified installation.The proposed system (SHAP HRV) both overcomes a number of challenges of wet roominstallations (such as lack of chimneys and dependable air extraction rates) and makes theproduct applicable to warmer climates, greatly increasing its export potential. Thedevelopment of this technology will also allow us to provide a Green Deal ready full housesystem (using already developed PHRVUs for habitable rooms and SHAP HRVs for wetrooms), a proposition proffered by both BRE and LABC.