scholarly journals Modified compact fluorescent lamps improve light‐induced off‐season floral stimulation in dragon fruit farming

2021 ◽  
Author(s):  
Quang Thach Nguyen ◽  
Minh Dung Ngo ◽  
Thanh Hung Truong ◽  
Duy Chinh Nguyen ◽  
Minh Chau Nguyen
Energy ◽  
2009 ◽  
Vol 34 (9) ◽  
pp. 1355-1363 ◽  
Author(s):  
J. Trifunovic ◽  
J. Mikulovic ◽  
Z. Djurisic ◽  
M. Djuric ◽  
M. Kostic

2015 ◽  
Vol 35 (1Sup) ◽  
pp. 89-97 ◽  
Author(s):  
Gabriel Alexis Malagon ◽  
Jeisson Bello Peña ◽  
Gabriel Ordóñez Plata ◽  
Cesar Duarte Gualdrón

<p class="MsoNormal" style="text-align: justify;"><span style="font-family: 'Century Gothic', sans-serif; font-size: 8pt; letter-spacing: -0.1pt;"><span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">This article presents an analysis and discussion on the performance of a circuit-based model for Compact Fluorescent Lamps (CFL) <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">in a 120V 60Hz power grid. This model is proposed and validated in previous scientific literature for CFLs in 230V 50Hz systems. <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">Nevertheless, the derivation of this model is not straightforward to follow and its performance in 120V 60Hz systems is a matter of <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">research work. In this paper, the analytical derivation of this CFL model is presented in detail and its performance is discussed when <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">predicting the current of a CFL designed to operate in a 120V 60Hz electrical system. The derived model is separately implemented <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">in both MATLAB<span style="font-family: OptimaLTStd; font-size: 5pt; color: #231f20; font-style: normal; font-variant: normal;">® <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">and ATP-EMTP<span style="font-family: OptimaLTStd; font-size: 5pt; color: #231f20; font-style: normal; font-variant: normal;">® <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">software using two different sets of parameters previously proposed for 230V 50Hz CFLs. These <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">simulation results are compared against laboratory measurements using a programmable AC voltage source. The measurements <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">and simulations considered seven CFLs 110/127V 60Hz with different power ratings supplied by a sinusoidal (not distorted) voltage <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">source. The simulations under these conditions do not properly predict the current measurements and therefore the set of parameters <span style="font-family: OptimaLTStd; font-size: 9pt; color: #231f20; font-style: normal; font-variant: normal;">and/or the model itself need to be adjusted for 120V 60Hz power grids.</span></span></span></span></span></span></span></span></span><br style="font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" /></span></span></span></span></span></span></p>


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