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IoT End Devices
Published in Rebecca Lee Hammons, Ronald J. Kovac, Fundamentals of Internet of Things for Non-Engineers, 2019
Carbon monoxide detector—Used to detect an abnormal level of carbon monoxide, a poisonous gas, in home or industrial environments. Typically, one of four different types of sensors are used in these: opto-chemical, biomimetic, electrochemical, and semiconductor (Engineer’s Edge 2018a,b). The electrochemical is the dominant technology in the United States and Europe for these detectors and is the lowest cost option.
Carbon Monoxide
Published in Kathleen Hess-Kosa, Indoor Air Quality, 2018
Sampling requires a handheld bellows or piston pump and carbon monoxide detector tubes. The pump and tubes must be made by the same manufacturer. The tubes are chemical specific with different ranges (e.g., 2 to 60 ppm and 8 to 150 ppm).
Predictive control strategies for optimizing temperature stability in instantaneous hot water systems
Published in Science and Technology for the Built Environment, 2021
Ismael A. S. Ehtiwesh, André F. Quintã, Jorge A. F. Ferreira
A virtual test bench was developed (Oliveira et al. 2019; Quintã et al. 2019) and a residential and commercial TGWH device (Hydro 4600F WTD10-4KME 23 JU) was integrated, which is a non-condensing model with 22kW thermal power and 86% thermal efficiency (Figure 2). The virtual bench and the TGWH, incorporate several sensors as depicted in Figure 3, namely, carbon monoxide detector, K type thermocouples (0 to 910°C) and RTD Pt100 temperature probes (class A), pressure sensor with display (0-10bar), and water flow meter, which allow measuring the variables that utilized in the feedback loop of the control systems (Karman vortex, 2 to 16L/min). Besides, manual flow and proportional electric actuation valves are used to simulate the hot water demand. The workbench allows to perform hardware in the loop simulation (HILS) experiments, namely for the testing of controllers implemented in microcontrollers, normally used in commercial TGWH devices. A dSPACE DS1104 controller board is used to perform real-time simulation, data acquisition, and interaction with hardware components, sensors, actuators and electronic control unit. In addition, it allows running the simulations in real time without any integrated hardware or prototype.
A microcontroller and performance testing of three biomass cookstoves commonly used in Cameroon
Published in International Journal of Ambient Energy, 2021
Jean Michel Sagouong, Ghislain Tchuen
The stove surrounding air quality was enquired by measuring its carbon monoxide concentration in regular time intervals, placing the Ampand Carbon Monoxide Detector about 4 metres away from the stove and at 1.8 metres above the ground level.