the economic benefits and costs of an energy efficiency measure. The software calculates the "internal rate of return" and the "net present value" of an efficiency measure. These terms are explained more completely on the calculator page. Just click the link above to begin using the calculator...
The DEQI is calculated for a thermal zone in which indoor air temperature, relative humidity and CO2 levels are monitored. It expresses in a single value the prevalent indoor environment quality category for the monitored period, based on the four indoor environment categories defined in standard ...
Readers of a certain age may recall getting through math and science courses with the assistance of a trusty solar-powered calculator that could harvest just enough ambient light from the classroom to power its rudimentary electronics and LCD screen. For many years, such devices were something of ...
There is no need to wet the wick each time a reading is taken; the Sling Psychrometer contains a slide rule calculator which correlates wet and dry bulb thermometer indications for direct reading of relative humidity. When not in use, the thermometer case telescopes into the handle for ...
The less time-consuming “S2S” radiation model is used while the impact of solar radiation is considered with the help of the solar calculator embedded in the Fluent software using a simple solar load model. For the comparison between simulation results and measured data an “implicit transient...
Control of temperature and relative humidity in storage areas and exhibitions is crucial for long-term preservation of cultural heritage objects. This paper explores the possibilities for developing a proactive system, based on a machine-learning model (
The dataset prepared to exemplify the methodology consists of four parameters (according to subsection 2.1.1): energy consumption (kWh), indoor air temperature (°C), indoor air relative humidity (%), and CO2 concentration (ppm). Related sensors are summarized in Table 3. Table 3. Sensors’ ...
For this purpose, sensors were placed to record the radiant temperature, air temperature, air velocity, lighting, relative humidity (RH), CO2 concentration and SPL. Table A1 in Appendix A shows the sensors used to measure the indoor environmental conditions in the classrooms. Phase 2: IEQ ...
The Harvard Health Building team released an online calculator [22] and came up with prevention guidelines for different buildings [23]. Gao et al. [24] developed a mathematical model to study the relative contributions of different transmission routes in enclosed spaces based on a location access...
The proposed OCC-fiber link successfully fulfills the Fuel and Missions Calculator (FEC), Version 3.8 limit for Bit Error Rate (BER) 10−310−3 on distances of 35 m (BER = 3.35 · 10−310−3) and 40 m (BER = 1.13 · 10−310−3) using fiber with diameters of 2 and 3...