This paper presents an experimental investigation on a novel dual compensation chamber loop heat pipe (DCCLHP) integrated with thermoelectric cooler (TEC) for improving the overall performance under various acceleration conditions. The operating characteristics of DCCLHP and without assistance TEC configurations A B are analyzed systematically different magnitudes loads. load evaporator ranges ...

A dehumidifier is a device for drying air by releasing moisture. with thermoelectric cooler has the advantage of being more compact and potential to be combined an heater. This study aimed determine effect power airflow on temperature relative humidity. The research method uses direct experiments six pieces as coolant. data taken are surface temperature, that dried, humidity air. test results s...

Whole-cell bacterial bioreporters await miniaturized photon counting modules with high sensitivity and robust compatible hardware to fulfill their promise of versatile, on-site biosensor functionality. In this study, we explore the photon counting readout properties of the silicon photomultiplier (SPM) with a thermoelectric cooler and the possibilities of detecting low-level bioluminescent sign...

This study presents the energy and economic analysis of Thermoelectric (TE) cooler design. The system designed for this purpose provides equal cooling power under equal temperature difference. In the study, seven different types of TE modules were used, operating conditions of the modules were changed due to module numbers. In addition, the variation in the cost of electric power was taken into...

We present a complete design of a multi channels PID controller for Thermoelectric Cooler (TEC) using a pulse width modulation (PWM) technique implemented by a dedicated programmable logic device (PLD) programmed by VHDL. The PID control loop is implemented by software written by National Instrument Lab-Windows CVI. Due to the fact that the implementation is by a VHDL and PLD the design is modu...

In this work, the influences of the Thomson effect and the geometry of the p-type segmented leg on the performance of a segmented thermoelectric microcooler (STEMC) were examined. The effects of geometry and the material configuration of the p-type segmented leg on the cooling power (Qc) and coefficient of performance (COP) were investigated. The influence of the cross-sectional area ratio of t...

The objective of this study was to develop suitable cooling systems for high-power multichip LEDs. To this end, three different active cooling systems were investigated to control the heat generated by the powering of high-power multichip LEDs in two different configurations (30 and 2 × 15 W). The following cooling systems were used in the study: an integrated multi-fin heat sink design with a ...

Fundamental output beam of 1064 nm wavelength emitted by a diode-pumped and passively Q-switched Nd:YAG microchip laser was frequency doubled in an 8 mm long periodically poled potassium titanyl phosphate (PPKTP) crystal. More than 12 μJ green pulse energy was obtained for 20 μJ fundamental pulse energy, corresponding to 60% second harmonic (SH) conversion efficiency. The power density of the f...

General application of continuous-wave (CW) laser irradiation modes in photodynamic therapy can cause thermal damage to normal tissues in addition to tumors. A new photodynamic laser therapy system using a pulse irradiation mode was optimized to reduce nonspecific thermal damage. In in vitro tissue specimens, tissue energy deposition rates were measured in three irradiation modes, CW, pulse, an...

HEPA Filter Critical Flow Orifice A personal, thermophoretic particle sampler was designed to collect airborne nanoparticles in the breathing zone of exposed workers. The thermal precipitator captures aerosol by creating a 1000 ̊C/cm temperature gradient between two aluminum plates (0.1 cm separation distance) using a resistive heater, a thermoelectric cooler, a temperature controller, and two t...