The role of elastic energy storage mechanisms in swimming: an analysis of mantle elasticity in escape jetting in the squid, Loligo opalescens

1983 ◽  
Vol 61 (6) ◽  
pp. 1421-1431 ◽  
Author(s):  
John M. Gosline ◽  
Robert E. Shadwick
Keyword(s):  
Energy Storage ◽  
Elastic Energy ◽  
Mechanical Energy ◽  
Storage System ◽  
Collagen Fibre ◽  
Energy Storage System ◽  
Mantle Cavity ◽  
Loligo Opalescens ◽  
Locomotory Performance

Elastic energy storage mechanisms have been shown to improve locomotory performance and efficiency in many animals. In this paper we consider the role of elastic energy storage in jet locomotion of the squid, Loligo opalescens. The jet is powered by the contraction of circular muscles in the mantle. In addition, the mantle contains a collagen fibre based energy storage system (the mantle "spring") which captures some of the mechanical energy produced by the circular muscles and then releases this energy to power the refilling of the mantle cavity. The mantle spring is constructed so that it stores energy from the circular muscles only at a time in the jet cycle when, by virtue of the cylindrical geometry of the mantle, the circular muscles are unable, to apply their full mechanical output to the generation of hydrodynamic thrust. Thus the mantle spring increases the utilization of the circular muscles, and our analysis indicates that these muscles are used at virtually 100% of their potential through the entire jet. Presumably this increase in muscle utilization improves the locomotory performance of the squid. Other swimming animals, such as fish, may obtain similar benefits if elastic energy storage systems are constructed to capture energy at a time in the swimming cycle when muscles can not apply their full output to the generation of useful hydrodynamic forces.

Analysis of Thermal Performance of Energy Storage System

2016 ◽  
Vol 824 ◽  
pp. 371-378
Author(s):  
Martina Jurigova ◽  
Maria Minarova ◽  
Ivan Chmúrny
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Storage System ◽  
Energy System ◽  
Energy Storage System ◽  
Advanced Technology ◽  
Winter Period ◽  
Concrete Tank ◽  
Effective Use

Thermal energy is necessary of many reasons. The most basic and most obvious includes food preparation and delivery of heat. Thermal energy storage is actually a temporary storage at high temperatures, respectively at low temperatures. It is an advanced technology, which can reduce environmental impact and it can facilitate more efficient and cleaner energy system. Nowadays, these systems have ability to retain thermal energy for a period of three months or more. The aim of design of these systems is to keep the thermal energy in summer period and to use it for heating in winter period. The role of such storage systems is to accumulate the heat, to balance temperature differences and to achieve the most effective use of the collected energy. This paper is focused on thermal analysis of system, which contains concrete tank. It is a system with water as a storage medium and the cooling of the water was monitored for 30 days.

scholarly journals A Simple Analog BLDC Drive Control for Electro-Mechanical Energy Storage System

2011 ◽  
Vol 12 ◽  
pp. 1002-1007 ◽  
Author(s):  
B. Abdi ◽  
M.M. Teymoori ◽  
H. Gholamrezaei ◽  
A.A. Nasiri
Keyword(s):  
Energy Storage ◽  
Mechanical Energy ◽  
Storage System ◽  
Energy Storage System ◽  
Drive Control ◽  
Simple Analog

Application of Mechanical Energy Storage in Micro-Fluid Turbine Design

2014 ◽  
Vol 472 ◽  
pp. 374-378
Author(s):  
Ying Yuan Tian ◽  
Xu Jun Wang ◽  
Gong Xiang Ji
Keyword(s):  
Energy Storage ◽  
Mechanical Energy ◽  
Storage System ◽  
Deep Ocean ◽  
Energy Storage System ◽  
Ocean Current ◽  
Low Speed ◽  
Speed Flow ◽  
Marine Current ◽  
Turbine Design

A micro-fluid turbine with mechanical energy storage system is designed and successfully tested in laboratory. As energy supplement for deep ocean installations, this patent design solved the problem of difficult generating electricity in ultra-low speed flow. The conventional marine current turbine can hardly get start in flows with velocity lower than 0.5m/s, whereas the marine current speed is seldom higher than one knot in deep sea. By adding a mechanical energy storage system, the rotor of the micro-fluid turbine first captures the fluid kinetic energy from the ultra-low speed flow, and then the energy transferred to the mechanical energy storage system, in which a plane scroll spring is used to store the limited energy and drive the generator automatically when it has enough potential energy. Simulation and laboratory test show that this method has potential for power generating in low density ocean current environment.

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